Trolley for electric railways



(No Model.)

W. J. CAVERT & W. P. WISWALL.

TROLLEY FOR ELECTRIC RAILWAYS.

No. 447,682. Patented Mar. 3,1891.

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ATTORNEYS UNITED STATES PATENT OFFICE.

VILLIAM J. CAVERT, OF ALBANY, AND WILLIAM P. iVISlVALL, OF WEST TROY, NEW YORK.

TROLLEY FOR ELECTRIC RAILWAYS.

SPECIFICATION forming part of Letters Patent No. 447,632, dated March 3, 1891.

Application filed August 27, 1890.

To all whom) it may concern.-

Be it known that we, \VILLIAM J. CAVERT, of Albany, in the county of Albany and State of New York, and WILLIAM P. WIswALL, of \Vest Troy, in the county of Albany and State of New York, have invented a new and Improved Trolley for Electric Railways, of which the following is a specification, reference being had to the annexed drawings, forming a part thereof, in which Figure 1 is a front elevation of our improved trolley. Fig. 2 is a side elevation, partly in section, the section being taken on line a: w in Fig. 1. Fig. 3 is a perspective view of the wearing-disk applied to the ends of the trolley-wheel boss. Fig. 4 is a horizontal section taken on line y y in Fig. 1, and Fig. 5 is a horizontal section taken on linezz in Fig. 1.

Similar letters of reference indicate corresponding parts in all the views.

The object of our invention is to construct a trolley which will follow the electric conductor without cramping the conductor or itself, and which will not be subjected to undue wear. Our object is also to provide an at tachment for the trolley which will clear the ice from the conductor, and will also serve as a guard for preventing the trolley from leaving the conductor.

Our invention consists in the construction and arrangement of parts, as will be hereinafter fully described and claimed.

To the pole A, which is carried by the car in any convenient way, is fitted a socket B, which is preferably of rectangular section. The upper end of the socket terminates in a pair of arms a a, which support a disk 0. The under surface of the said disk 0 is provided with armsbb, which support the crossbar D, having at opposite ends threaded studs 0 c, to which are fitted the nuts d d for clamping the conductor which leads to the motor of the car.

To the disk 0 is fitted the disk 0', which is provided with the arms 6 6', together forming the fork E, in which is journaled the trolley-wheel F upon the pin G, which extends through the boss of the said wheel and through the arms of the said fork. The disks 0 and O are centrally apertured, and a bolt H provided with nuts f, passes through the said Serial No. 363,202. (No model.)

disks, the nuts serving to clamp-the two disks together. drilled transversely to receive spring-keys g, which prevent the nuts from unscrewing accidentally. The disk 0 is furnished with an upwardly-turned flange 0 forming together with the disk an oil guard or cup for preventing the oil from running down the trolley-pole.

The trolley-wheel F is formed integrally with the boss I, and the said wheel is made of uniform thickness from the boss to its periphery, to allow the wheel to wear down to the boss without detaching the flanges.

In enlargements formed on the ends of the The nuts f and the bolt H are arms 6 e of the fork E are made holes 72. for

receiving the studs 1' of the wearing-disks J. (Shown in Fig. 3.) WVhenever the said disks become worn they may be removed and replaced by new ones, thus prolonging the usefulness of the trolley-Wheel. One end of the pin G upon which the trolley-wheel F turns is squared and fits into a square hole in the arm 6 of the fork E, and the said pin is held in place in the fork by springkeysj, passing through the pin G outside of the fork E. The arm 6 of the fork E is provided with an inwardly-projecting lug k, to which are pivoted the curved arms Z, which embrace the boss I and are drawn together upon the said boss by a spring m, connected with their free ends. The said arms Z serve to collect the current from the boss of the trolley-wheel and convey it to the arm 6 of the fork.

To the side of the socket B is attached an arm K, having a hollow base L cut away at an angle so as to permit the arm to project from the socket in a horizontal direction. The said hollow base of the arm K is secured to the socket B by screw passing through the arm into the socket. The outer end of the arm K is angled and bored transversely to receive the shank of the fork M, which extends upwardly parallel with the socket l3, and is adapted to follow the conductor without touching it when the trolley is working normally, but is capable of making a contact with the conductor when the trolley fails to follow the conductor. This fork M also serves to scrape off any ice that may accumulate on the conductor. The shank of the fork M is clamped in the arm K by the screw 92. An

eycbolt N extends through the base L of the arm K, and is provided with a ring 0 for receiving the cord by which the trolley-arm is manipulated.

Having thus described our invention, we claim as new and desire to secure by Letters Patent- 1. In a trolley for electricrailways, the combination, with the trolley-fork having ends 6 6' provided with holes 7L, and the wearingdisks J, having studs t' entering said holes, of the trolley-wheel journaled in the fork between said disks, substantially as set forth.

2. In a trolley for electric railways, the combination, with the socket B, terminating at its upper end in arms a a, the disk 0, provided on its under side with arms 6 I), and the bar D, supported by the arms Z) l) and having threaded ends 0 0 provided with binding-nuts for the conductor, of the fork pivot ing on the disk C and provided with a trolley-wheel, substantially as set forth.

3. In a trolley for electric railways, the con1- bination of the socket B, provided with arms a co, the disk (1, bar D, the fork E, furnished with the disk 0', the pivotal bolt II, connecting the disks 0 O, and the trolleywheel F, journaled in the fork E, substantially as specified.

4C. In a trolley for electric railways, the combination, with the disk 0, fork l1], and trolley-wheel carried by the said fork, of the disk 0, having on its periphery the upwardly-turncd rim, substantially as specified.

5. In a trolley for electric railways, the combination, with the fork E and trolley-wheel F, furnished with the boss I, of the pivoted curved spring-pressed arms Z, substantially as specified.

6. In a trolley for electric railways, the combination, with the trolley and its wheel, of an arm or hearing below the wheel, and a fork projecting therefrom upward to embrace the conductor at a point beyond where it is engaged by the wheel, said fork being adapted to contact with the conductor when the trolley-wheel fails to follow it, substantially as set forth.

7. In a trolley for electric railways, the combination, with the socketB, provided with the vertically-extending turning-fork provided with a trolley-wheel, of the arm K, secured horizontally to the socket below the wheel, and having an inclined aperture through its outer end, of the fork M, having ashank adjustable longitudinally through said aperture, said fork being adapted to contact with the conductor when the trolley-wheel fails to follow it, substantially as set forth.

'WILLIAM J. CAVERT. \VILLIAM P. \VI$\VALL. Witnesses:

W. E. VALENTINE, JACOB L. OSTRANDER. 

